package day2;

/**
 * @author oldliu
 * @since 1.0
 */
public class StrTest6 {
    public static void main(String[] args) {
        String s="java";
        s+="hello";
        s=s.concat("csharp");
        s=s+(4+6);

        System.out.println(s);
    }
}
